How to install and activate an eSIM

Last updated: July 13, 2026

Installing an alodata eSIM takes a couple of minutes. We recommend installing before you travel (over Wi-Fi) and only enabling data roaming for the eSIM line once you arrive at your destination.

The short version

Buy your plan, get a QR code by email, and scan it in your phone settings while on Wi-Fi — ideally before you fly. Turn on data roaming for the eSIM line once you land, and you are connected.

Before you start

Make sure your device supports eSIM and is carrier-unlocked, and connect to Wi-Fi. Have the QR code from your alodata order email ready on another screen, or save the activation details.

On iPhone

1. Open Settings → Mobile Service (or Cellular) → Add eSIM.
2. Choose 'Use QR Code' and scan the code from your order email.
3. Label the plan (e.g. 'alodata Travel') and keep your primary line as your default for calls.
4. On arrival, turn on 'Data Roaming' for the alodata line and set it as your mobile data line.

On Android (Pixel, Galaxy, and others)

1. Open Settings → Network & internet → SIMs (or Connections → SIM manager) → Add eSIM / Download a SIM instead.
2. Scan the QR code from your order email and confirm the download.
3. On arrival, enable the eSIM, turn on roaming for that line, and select it for mobile data.

Common pitfalls

Install over Wi-Fi, not mobile data. Don't delete the eSIM to reinstall it — most plans can only be installed once. If you have no data at your destination, check that roaming is enabled for the alodata line and that it's selected as the mobile data line.

Common mistakes to avoid

• Installing on mobile data — always scan the QR code while connected to Wi-Fi.
• Deleting the eSIM to reinstall it — most plans can only be installed once.
• Leaving data roaming off for the eSIM at your destination — it needs to be on.
• Setting the eSIM up but leaving your old SIM as the data line — select the eSIM for data.

See also: eSIM not working? How to fix it